منابع مشابه
Phase transitions in solids of diperiodic symmetry.
All isotropy subgroups (and thus all quasicontinuous symmetry changes) corresponding to k points of symmetry have been obtained for the 80 diperiodic space groups. The detailed information for such phase transitions is given here for the diperiodic space group I'———.Only two distinct images (sets of representation matrices) occur for this example yielding Landau-Ginzburg-Wilson (LGW) Hamiltonia...
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The use of the photoacoustic effect in the investigation of firstand second-order phase transitions has been examined. Changes in the amplitude of the photoacoustic signal across the phase transition are compared with changes in thermal properties such as specific heat and thermal diffusivity. The systemsstudied include NaN02, TlN03, CsN03, NH4N03, BaTiO,, COO, Cu,HgI,, V 0 2 andV305. The curre...
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ژورنال
عنوان ژورنال: Acta Physica Polonica A
سال: 2000
ISSN: 0587-4246,1898-794X
DOI: 10.12693/aphyspola.97.365